Zoom lens module
A zoom lens module is provided and includes a liquid lens, a rigid lens, and an actuator. The liquid lens has two side surfaces opposite to each other. An optical axis of the liquid lens passes through the two side surfaces, and at least one of two side surfaces is a deformable side surface. The rigid lens has a shaping surface being not flat. The rigid lens is arranged inside or outside the liquid lens, and the shaping surface faces the deformable side surface. The actuator is connected to one of the liquid lens and the rigid lens to drive the deformable side surface and the shaping surface to move relative to each other, so that the shaping surface contacts and presses the deformable side surface to be deformed.
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This application claims the benefit of U.S. provisional application Ser. No. 63/145,552, filed on Feb. 4, 2021 and claims the priority of Patent Application No. 202111491493.X filed in China, P.R.C. on Dec. 8, 2021. The entirety of the above-mentioned patent applications are hereby incorporated by references herein and made a part of the specification.
BACKGROUND Technical FieldThe instant disclosure relates to a liquid lens, and in particular, to a zoom lens module.
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The shaping member 6 is arranged on the optical path. Therefore, the shaping member 6 has a hollow region for passing through the light. When the shaping member 6 presses the film 5, the shaping member 6 directly presses the edge region of the surface of the film 5, so that the edge region is deformed. On the other hand, a middle region of the film 5 corresponding to the hollow region is not directly pressed but stands a bending stress. Hence, the junction between the edge region and the middle region forms a bent corner, and the stress tends to be concentrated on the bent corner, thereby allowing the film 5 to be broken easily.
Moreover, the edge region of the surface of the film 5 is directly forced and shaped by the shaping member 6; while the middle region stands the bent stress to be deformed. As a result, the surface curvature of the edge region of the film 5 and the surface curvature of the middle region of the film 5 are not identical with each other. Furthermore, in some cases, forces are not applied to the middle region of the film 5, and the surface curvature across the middle region is even not changed and flat. Consequently, the curvature change of the middle region cannot be controlled easily, resulting in unstable optical zooming performances.
SUMMARYIn view of this, a zoom lens module is provided. In one embodiment, the zoom lens module comprises a liquid lens, a rigid lens, and an actuator. The liquid lens has two side surfaces opposite to each other. An optical axis of the liquid lens passes through the two side surfaces, and at least one of two side surfaces is a deformable side surface. The rigid lens has a shaping surface being not flat. The rigid lens is arranged inside or outside the liquid lens. The shaping surface faces the deformable side surface. The actuator is connected to one of the liquid lens and the rigid lens to drive the deformable side surface and the shaping surface to move relative to each other, so that the shaping surface contacts and presses the deformable side surface to be deformed.
In one or some embodiments of the instant disclosure, the rigid lens is arranged outside the liquid lens, and the shaping surface is an outward convex curved surface.
In one or some embodiments of the instant disclosure, the liquid lens comprises a frame, a rigid transparent plate, a lower film, and a light-permissible liquid. The frame has a hollow region in communication with two faces of the frame. The rigid transparent plate and the lower film are respectively formed as the two side surfaces of the liquid lens. The lower film is formed as the deformable side surface. The light-permissible liquid is filled in the hollow region.
In one or some embodiments of the instant disclosure, the zoom lens module further comprises a shaping member. The rigid lens is arranged on the shaping member, and the shaping member is adapted to be moved toward the lower film.
In one or some embodiments of the instant disclosure, the actuator is a linear actuator, the linear actuator is connected to the shaping member, and the linear actuator is adapted to drive the shaping member to move toward the lower film.
In one or some embodiments of the instant disclosure, the actuator is a linear actuator, the linear actuator is directly connected to the rigid lens, and the linear actuator is adapted to drive the rigid lens to move toward the lower film.
In one or some embodiments of the instant disclosure, the rigid lens is arranged inside the liquid lens, and the shaping surface is an outward convex curved surface.
In one or some embodiments of the instant disclosure, the rigid lens is fixedly arranged in the hollow region and immersed in the light-permissible liquid, and the shaping surface faces the lower film.
In one or some embodiments of the instant disclosure, a shaping member is arranged outside the liquid lens and corresponds to the lower film. The shaping member surrounds a light-permissible region, so that the optical axis of the liquid lens passes through the light-permissible region. The actuator is connected to the shaping member to drive the shaping member to move toward the lower film, so that a portion of the lower film is moved toward the shaping surface, and the rigid lens presses the lower film to allow the lower film to attach to the shaping surface.
In one or some embodiments of the instant disclosure, the actuator comprises a liquid pump and a pipeline. The liquid pump is in communication with a liquid space through the pipeline and is adapted to suction the light-permissible liquid form the liquid space or to pump the light-permissible liquid to the liquid space, so that an amount of the light-permissible liquid in the liquid space is adjustable.
In one or some embodiments of the instant disclosure, the two side surfaces of the liquid lens are deformable side surfaces, and the zoom lens module comprises two of the rigid lenses and two of the actuators. The two rigid lenses are arranged outside the liquid lens, and the shaping surface of each of the two rigid lenses faces a corresponding one of the two deformable side surfaces. The two actuators are respectively connected to the two rigid lenses, so that each of the two actuators is adapted to drive a corresponding one of the two rigid lenses to move toward a corresponding one of the two deformable side surfaces, and each of the two shaping surfaces contacts and presses the corresponding one of the two deformable side surfaces to be deformed.
In one or some embodiments of the instant disclosure, the liquid lens comprises a frame, an upper film, a lower film, and a light-permissible liquid. The frame has a hollow region in communication with two faces of the frame. The upper film and the lower film are respectively at the two faces of the frame to seal the hollow region. The upper film and the lower film are respectively formed as the two deformable side surfaces. The light-permissible liquid is filled in the hollow region.
In one or some embodiments of the instant disclosure, the zoom lens module comprises two of the rigid lenses and two of the actuators, and the liquid lens comprises a frame, a rigid transparent plate, an upper film, a lower film, and a light-permissible liquid. The frame has a hollow region in communication with two faces of the frame. The rigid transparent plate is arranged in the hollow region to divide the hollow region into an upper region and a lower region respectively corresponding to the two faces. The upper film is arranged in the upper region, and a first liquid space is between the rigid transparent plate and the upper film. The lower film is arranged in the lower region. A second liquid space is between the rigid transparent plate and the lower film, and the first liquid space is not in communication with the second liquid space. The light-permissible liquid is filled in the first liquid space and the second liquid space. The upper film and the lower film are respectively formed as deformable side surfaces. The rigid lenses are fixed in the frame and arranged outside the first liquid space and the second liquid space. The two shaping surfaces of the two rigid lenses respectively face the upper film and the lower film.
In one or some embodiments of the instant disclosure, each of the two actuators comprises a liquid pump and a pipeline. One of the two liquid pumps is in communication with the first liquid space through one of the two pipelines and is adapted to suction the light-permissible liquid from the first liquid space or to pump the light-permissible liquid to the first liquid space. The other one of the two liquid pumps is in communication with the second liquid space through the other one of the two pipelines and is adapted to suction the light-permissible liquid from the second liquid space or to pump the light-permissible liquid to the second liquid space, so that an amount of the light-permissible liquid in the first liquid space and an amount of the light-permissible liquid in the second liquid space are adjustable.
In one or some embodiments of the instant disclosure, each of the two shaping surfaces is an inward concave curved surface.
In one or some embodiments of the instant disclosure, the liquid lens comprises a frame, a flexible liquid container, a rigid transparent plate, and a light-permissible liquid. The frame has a hollow region in communication with two faces of the frame. The flexible liquid container is movably arranged in the hollow region. The flexible liquid container has an upper film and a lower film opposite to the upper film. The upper film and the lower film are formed as the two side surfaces of the liquid lens. The rigid transparent plate is movably and correspondingly arranged in the hollow region. The rigid transparent plate contacts the lower film to support the flexible liquid container. The light-permissible liquid is filled in the flexible liquid container. The rigid lens is arranged on the frame and corresponds to the hollow region. The shaping surface of the rigid lens faces the upper film. The actuator is adapted to drive the rigid transparent plate to move toward the rigid lens, so that the flexible liquid container is lifted up by the actuator to drive the upper film to move toward the shaping surface.
In one or some embodiments of the instant disclosure, the liquid lens comprises a liquid container, a lower rigid transparent plate, and a light-permissible liquid. The liquid container has an upper film. The upper film is flexible and is formed as the deformable side surface. The lower rigid transparent plate is adapted to support the liquid container. The light-permissible liquid is filled in the liquid container. The rigid lens is arranged in the liquid container and is immersed in the light-permissible liquid. The shaping surface contacts the upper film, so that the upper film is normally attached to the shaping surface. The actuator is adapted to allow the light-permissible liquid to be filled between the upper film and the shaping surface.
In one or some embodiments of the instant disclosure, the zoom lens module further comprises an upper rigid transparent plate arranged above the upper film. The upper rigid transparent plate is spaced from the upper film with a gap.
In one or some embodiments of the instant disclosure, the liquid container further comprises a lower film. The upper film and the lower film enclose the light-permissible liquid. The lower rigid transparent plate is adapted to contact the lower film to support the liquid container, and a bottom surface of the rigid lens contacts the lower film.
In another embodiment of the instant disclosure, a zoom lens module is provided, and the zoom lens module comprises a liquid lens and two actuators.
The liquid lens has two side surfaces opposite to each other. An optical axis of the liquid lens passes through the two side surfaces, and at least one of the two side surfaces is a deformable side surface. The liquid lens comprises a frame, a rigid transparent plate, an upper film, a lower film, two fixation members, and a light-permissible liquid. The frame has a hollow region in communication with two faces of the frame. The rigid transparent plate is arranged in the hollow region to divide the hollow region into an upper region and a lower region respectively corresponding to the two faces. The upper film is arranged in the upper region, and a first liquid space is between the rigid transparent plate and the upper film. The lower film is arranged in the lower region, a second liquid space is between the rigid transparent plate and the lower film, and the first liquid space is not in communication with the second liquid space. The two fixation members are arranged in the hollow region and respectively correspond to the upper film and the lower film. Each of the two fixation members surrounds a light-permissible region, so that the optical axis of the liquid lens passes through the light-permissible region. The light-permissible liquid is filled in the first liquid space and the second liquid space. The upper film and the lower film are respectively formed as deformable side surfaces.
Each of the two actuators is connected to the liquid lens and comprises a liquid pump and a pipeline. One of the two liquid pumps is in communication with the first liquid space through one of the two pipelines and is adapted to suction the light-permissible liquid from the first liquid space or to pump the light-permissible liquid to the first liquid space. The other one of the two liquid pumps is in communication with the second liquid space through the other one of the two pipelines and is adapted to suction the light-permissible liquid from the second liquid space or to pump the light-permissible liquid to the second liquid space, so that the two actuators drive the upper film and the lower film to be deformed.
According to one or some embodiments of the instant disclosure, the shaping surface directly contacts the deformable side surface of the liquid lens, so that the deformable side surface is deformed according to the profile of the shaping surface. Moreover, according to one or some embodiments of the instant disclosure, the shaping surface is in contact with the deformable side surface in a surface-contact manner. Therefore, the formation of the bent corner can be avoided and the side surface can be configured to have proper curved surface to achieve a predetermined zooming performance. Moreover, according to one or some embodiments, the deformation of the upper film and the lower film can be controlled by suctioning or pumping the liquid lens with the pump, thereby allowing the focal length of the zoom lens module to be changed in a stepless manner.
This disclosure will become more fully understood from the detailed description given herein below for illustration only and thus not limitative of this disclosure, wherein:
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The upper film 115 is arranged in the upper region A1, and a first liquid space R1 is between the rigid transparent plate 112 and the upper film 115. The lower film 113 is arranged in the lower region A2, and a second liquid space R2 is between the rigid transparent plate 112 and the lower film 113. The first liquid space R1 is not in communication with the second liquid space R2. The light-permissible liquid 114 is filled in the first liquid space R1 and the second liquid space R2. The upper film 115 and the lower film 113 are respectively formed as the deformable side surfaces 110a, 110b.
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In one or some embodiments, the rigid lens 120 is fixedly arranged on the frame 111 and is not moved with respect to the frame 111. Therefore, the rigid lens 120 can be prevented from being shifted to cause the shift of the optical path. Especially, in one embodiment, to prevent the optical axis L of the rigid lens 120 from having deflection or translation which thus causes the optical axis L of the rigid lens 120 cannot be arranged on a predetermined position. Therefore, in this embodiment, the rigid transparent plate 112 is served as a movable end to drive the flexible liquid container 116, and the rigid lens 120 is served as a fixed end. Hence, the rigid transparent plate 112 drives the flexible liquid container 116 to allow the upper film 115 to fill the void of the rigid lens 120 to achieve a proper curvature change and to preventing the optical axis L of the rigid lens 120 from having deflection or translation.
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The liquid lens 110 has two opposite side surfaces 110a, 110b. The optical axis of the liquid lens 110 passes through the two side surfaces 110a, 110b, and at least one of the two side surfaces 110a, 110b is a deformable side surface. The liquid lens 110 comprises a frame 111, a rigid transparent plate 112, an upper film 115, a lower film 113, two fixation members 150, and a light-permissible liquid 114. The frame 111 has a hollow region A in communication with two faces of the frame 111. The rigid transparent plate 112 is arranged in the hollow region A to divide the hollow region A into an upper region A1 and a lower region A2 respectively corresponding to the two faces. The upper film 115 is arranged in the upper region A1, and a first liquid space R1 is between the rigid transparent plate 112 and the upper film 115. The lower film 113 is arranged in the lower region A2, a second liquid space R2 is between the rigid transparent plate 112 and the lower film 113, and the first liquid space R1 is not in communication with the second liquid space R2. The two fixation members 150 are arranged in the hollow region A and respectively correspond to the upper film 115 and the lower film 113. Each of the two fixation members 150 surrounds a light-permissible region S, so that the optical axis of the liquid lens 110 passes through the light-permissible region S. The light-permissible liquid 114 is filled in the first liquid space R1 and the second liquid space R2, and the upper film 115 and the lower film 113 are respectively formed as deformable side surfaces 110a, 110b.
Each of the two actuators 130 is connected to the liquid lens 110, and each of the two actuators 130 comprises a liquid pump 132 and a pipeline 134. One of the two liquid pumps 132 is in communication with the first liquid space R1 through one of the two pipelines 134 and is adapted to suction the light-permissible liquid 114 from the first liquid space R1 or to pump the light-permissible liquid 114 to the first liquid space R1. The other one of the two liquid pumps 134 is in communication with the second liquid space R2 through the other one of the two pipelines 134 and is adapted to suction the light-permissible liquid 114 from the second liquid space R2 or to pump the light-permissible liquid 114 to the second liquid space R2, so that the two actuators 130 drive the upper film 115 and the lower film 113 to be deformed, thereby allowing the focal length of the zoom lens module to be changed in a stepless manner.
According to one or some embodiments of the instant disclosure, the shaping surface 122 directly contacts the deformable side surface 110a/110b of the liquid lens 110, so that the deformable side surface 110a/1110b is deformed according to the profile of the shaping surface 122. Moreover, according to one or some embodiments of the instant disclosure, the shaping surface 122 is in contact with the deformable side surface 110a/110b in a surface-contact manner. Therefore, the formation of the bent corner can be avoided and the side surface 110a/110b can be configured to have proper curved surface to achieve a predetermined zooming performance. Moreover, according to one or some embodiments, the deformation of the upper film 115 and the lower film 113 can be controlled by suctioning or pumping the liquid lens with the pump 132, thereby allowing the focal length of the zoom lens module 100 to be changed in a stepless manner.
Specifically, in one embodiment, the shaping surface of the rigid lens may be spherical or non-spherical, and the rigid lens may be arranged inside or outside the liquid lens, and the liquid pump or the shaping member is provided to drive the shaping surface to contact the deformable side surface. The exemplary combinations of the exemplary embodiments of the instant disclosure are concluded as the following Table 1.
Claims
1. A zoom lens module, comprising:
- a liquid lens having two side surfaces opposite to each other, wherein an optical axis of the liquid lens passes through the two side surfaces, and at least one of the two side surfaces is a deformable side surface;
- a rigid lens having a shaping surface being not flat, wherein the rigid lens is arranged inside or outside the liquid lens, and the shaping surface faces the deformable side surface; and
- an actuator connected to one of the liquid lens and the rigid lens to drive the deformable side surface and the shaping surface to move relative to each other, so that the shaping surface contacts and presses the deformable side surface to be deformed.
2. The zoom lens module according to claim 1, wherein the rigid lens is arranged outside the liquid lens, and the shaping surface is an outward convex curved surface.
3. The zoom lens module according to claim 2, wherein the liquid lens comprises:
- a frame having a hollow region in communication with two faces of the frame;
- a rigid transparent plate and a lower film respectively at the two faces of the frame to seal the hollow region, wherein the rigid transparent plate and the lower film are respectively formed as the two side surfaces of the liquid lens, and the lower film is formed as the deformable side surface; and
- a light-permissible liquid filled in the hollow region.
4. The zoom lens module according to claim 3, further comprising a shaping member, wherein the rigid lens is arranged on the shaping member, and the shaping member is adapted to be moved toward the lower film.
5. The zoom lens module according to claim 4, wherein the actuator is a linear actuator, the linear actuator is connected to the shaping member, and the linear actuator is adapted to drive the shaping member to move toward the lower film.
6. The zoom lens module according to claim 3, wherein the actuator is a linear actuator, the linear actuator is directly connected to the rigid lens, and the linear actuator is adapted to drive the rigid lens to move toward the lower film.
7. The zoom lens module according to claim 1, wherein the rigid lens is arranged inside the liquid lens, and the shaping surface is an outward convex curved surface.
8. The zoom lens module according to claim 7, wherein the liquid lens comprises:
- a frame having a hollow region in communication with two faces of the frame;
- a rigid transparent plate and a lower film respectively at the two faces of the frame to seal the hollow region, wherein the rigid transparent plate and the lower film are respectively formed as the two side surfaces of the liquid lens, and the lower film is formed as the deformable side surface; and
- a light-permissible liquid filled in the hollow region.
9. The zoom lens module according to claim 8, wherein the rigid lens is fixedly arranged in the hollow region and immersed in the light-permissible liquid, and the shaping surface faces the lower film.
10. The zoom lens module according to claim 9, wherein a shaping member is arranged outside the liquid lens and corresponds to the lower film; the shaping member surrounds a light-permissible region, so that the optical axis of the liquid lens passes through the light-permissible region; the actuator is connected to the shaping member to drive the shaping member to move toward the lower film, so that a portion of the lower film is moved toward the shaping surface, and the rigid lens presses the lower film to allow the lower film to attach to the shaping surface.
11. The zoom lens module according to claim 3, wherein the actuator comprises a liquid pump and a pipeline; the liquid pump is in communication with a liquid space through the pipeline, and the liquid pump is adapted to suction the light-permissible liquid from the liquid space or to pump the light-permissible liquid to the liquid space, so that an amount of the light-permissible liquid in the liquid space is adjustable.
12. The zoom lens module according to claim 3, wherein the two side surfaces of the liquid lens are deformable side surfaces, and the zoom lens module comprises two of the rigid lenses and two of the actuators; the two rigid lenses are arranged outside the liquid lens, and the shaping surface of each of the two rigid lenses faces a corresponding one of the two deformable side surfaces; the two actuators are respectively connected to the two rigid lenses, so that each of the two actuators is adapted to drive a corresponding one of the two rigid lenses to move toward a corresponding one of the two deformable side surfaces, and each of the two shaping surfaces contacts and presses the corresponding one of the two deformable side surfaces to be deformed.
13. The zoom lens module according to claim 1, wherein the liquid lens comprises:
- a frame having a hollow region in communication with two faces of the frame;
- an upper film and a lower film respectively at the two faces of the frame to seal the hollow region, wherein the upper film and the lower film are respectively formed as the two deformable side surfaces; and
- a light-permissible liquid filled in the hollow region.
14. The zoom lens module according to claim 1, wherein the zoom lens module comprises two of the rigid lenses and two of the actuators, and the liquid lens comprises:
- a frame having a hollow region in communication with two faces of the frame;
- a rigid transparent plate arranged in the hollow region to divide the hollow region into an upper region and a lower region respectively corresponding to the two faces;
- an upper film arranged on the upper region, wherein a first liquid space is between the rigid transparent plate and the upper film;
- a lower film arranged on the lower region, wherein a second liquid space is between the rigid transparent plate and the lower film, and the first liquid space is not in communication with the second liquid space; and
- a light-permissible liquid filled in the first liquid space and the second liquid space, wherein the upper film and the lower film are respectively formed as deformable side surfaces;
- wherein the rigid lenses are fixed in the frame, and the rigid lenses are arranged outside the first liquid space and the second liquid space, and the two shaping surfaces of the two rigid lenses respectively face the upper film and the lower film.
15. The zoom lens module according to claim 14, wherein each of the two actuators comprises a liquid pump and a pipeline; one of the two liquid pumps is in communication with the first liquid space through one of the two pipelines and is adapted to suction the light-permissible liquid from the first liquid space or to pump the light-permissible liquid to the first liquid space, and the other one of the two liquid pumps is in communication with the second liquid space through the other one of the two pipelines and is adapted to suction the light-permissible liquid from the second liquid space or to pump the light-permissible liquid to the second liquid space, so that an amount of the light-permissible liquid in the first liquid space and an amount of the light-permissible liquid in the second liquid space are adjustable.
16. The zoom lens module according to claim 14, wherein each of the two shaping surfaces is an inward concave curved surface.
17. The zoom lens module according to claim 1, wherein the liquid lens comprises:
- a frame having a hollow region in communication with two faces of the frame;
- a flexible liquid container movably arranged in the hollow region, wherein the flexible liquid container has an upper film and a lower film opposite to the upper film, and the upper film and the lower film are formed as the two side surfaces of the liquid lens;
- a rigid transparent plate movably and correspondingly arranged in the hollow region, wherein the rigid transparent plate contacts the lower film to support the flexible liquid container; and
- a light-permissible liquid filled in the flexible liquid container;
- wherein the rigid lens is arranged on the frame and corresponds to the hollow region, the shaping surface of the rigid lens faces the upper film; the actuator is adapted to drive the rigid transparent plate to move toward the rigid lens, so that the flexible liquid container is lifted up by the actuator to drive the upper film to move toward the shaping surface.
18. The zoom lens module according to claim 1, wherein the liquid lens comprises:
- a liquid container having an upper film, wherein the upper film is flexible and is formed as the deformable side surface;
- a lower rigid transparent plate adapted to support the liquid container; and
- a light-permissible liquid filled in the liquid container;
- wherein the rigid lens is arranged in the liquid container and is immersed in the light-permissible liquid; the shaping surface contacts the upper film, so that the upper film is normally attached to the shaping surface; the actuator is adapted to allow the light-permissible liquid to be filled between the upper film and the shaping surface.
19. The zoom lens module according to claim 18, further comprising an upper rigid transparent plate arranged above the upper film, wherein the upper rigid transparent plate is spaced from the upper film with a gap.
20. The zoom lens module according to claim 18, wherein the liquid container further comprises a lower film; the upper film and the lower film enclose the light-permissible liquid; the lower rigid transparent plate is adapted to contact the lower film to support the liquid container, and a bottom surface of the rigid lens contacts the lower film.
21. A zoom lens module, comprising:
- a liquid lens having two side surfaces opposite to each other, wherein an optical axis of the liquid lens passes through the two side surfaces, and at least one of the two side surfaces is a deformable side surface; the liquid lens comprises: a frame having a hollow region in communication with two faces of the frame; a rigid transparent plate arranged in the hollow region to divide the hollow region into an upper region and a lower region respectively corresponding to the two faces; an upper film arranged in the upper region, wherein a first liquid space is between the rigid transparent plate and the upper film; a lower film arranged in the lower region, wherein a second liquid space is between the rigid transparent plate and the lower film, and the first liquid space is not in communication with the second liquid space; two fixation members arranged in the hollow region and respectively corresponding to the upper film and the lower film, wherein each of the two fixation members surrounds a light-permissible region, so that the optical axis of the liquid lens passes through the light-permissible region; and a light-permissible liquid filled in the first liquid space and the second liquid space, wherein the upper film and the lower film are respectively formed as deformable side surfaces; and
- two actuators respectively connected to the liquid lens, wherein each of the two actuators comprises a liquid pump and a pipeline; one of the two liquid pumps is in communication with the first liquid space through one of the two pipelines and is adapted to suction the light-permissible liquid from the first liquid space or to pump the light-permissible liquid to the first liquid space, and the other one of the two liquid pumps is in communication with the second liquid space through the other one of the two pipelines and is adapted to suction the light-permissible liquid from the second liquid space or to pump the light-permissible liquid to the second liquid space, so that the two actuators drive the upper film and the lower film to be deformed.
20200285077 | September 10, 2020 | Leuenberger |
Type: Grant
Filed: Dec 29, 2021
Date of Patent: Dec 19, 2023
Patent Publication Number: 20220120943
Assignee: GUANGZHOU LUXVISIONS INNOVATION TECHNOLOGY LIMITED (Guangzhou)
Inventors: Cheng-Te Tseng (Guangzhou), Sheng-Chieh Yang (Guangzhou)
Primary Examiner: James C. Jones
Application Number: 17/564,875